Deep well type downcast pipe
By designing deep well-type precipitation pipes, including permeable bodies, precipitation core pipes and water storage air cushions, the existing precipitation wells are easily blocked and leaked in power outages, achieving a more efficient and reliable precipitation effect.
Patent Information
- Application Number
- CN202421020676.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Existing precipitation wells are prone to blockage in the event of power outage, and air leakage or fall off between the plastic plug and the permeable body, resulting in poor precipitation effect.
A deep well-type precipitation pipe is designed, including a hollow tubular permeable body, a hollow precipitation core tube, an upper fixed sleeve ring, a lower fixed sleeve ring, a water storage air cushion and a hose. The permeability body is covered with a filter cloth, and the lower end of the precipitation core tube is bevelly cut, inserted into the permeability body, and connected to the water storage and air storage bucket. The water storage air-retaining bucket stores water volume during power outage to prevent silt and sand accumulation and blockage, and fixes the structure through fixing collars and pins to avoid falling off and air leakage.
It effectively avoids the problem of sediment accumulation and blocking the precipitation core tube in the event of power outages, and through the design of the water storage air cushion, it prevents air leakage and fall off, and improves the reliability of precipitation operations.
Smart Images
Figure CN222575534U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of precipitation engineering, in particular to a precipitation well device. Background Art
[0002] Light well points, jet well points, tube wells, etc. are often used in engineering construction to reduce groundwater. Light well point dewatering is the most widely used. Light well points are generally composed of two parts: the upper sealing section and the lower filter. The materials are generally PVC pipes and steel pipes. The upper seal is mainly used to extract groundwater; the lower filter is distributed with a certain proportion of permeable holes to play the role of water permeability.
[0003] In order to achieve a larger precipitation depth, the pipe mouth of the precipitation well needs to be buried to a certain depth; at the same time, in order to ensure the water output, the filter needs to have a certain length; within the limited depth, there is a mutual restriction between the buried depth of the pipe mouth and the length of the filter; if the pipe mouth is set deep, the filter needs to be shortened accordingly; if the filter is left long, the buried depth of the pipe mouth needs to be reduced. At the same time, the periphery of the precipitation well needs to be backfilled with filter material to reduce clogging and ensure the water output. However, due to the small diameter of the light well point, the backfilling filter material construction is difficult. In some engineering projects, the method of compacting holes or water flushing holes is often used, resulting in a small contact area between the well point and the soil and a small water output. In view of the shortcomings of the light well point, how to achieve the premise of not increasing the depth of the water collection well, as much as possible to increase the depth of the precipitation well pipe mouth to increase the precipitation depth, and at the same time as much as possible to increase the length of the permeable section to increase the water output is worth studying. According to this idea, the existing patent CN216041260U-a prefabricated precipitation well device provides a processing idea of separating the precipitation pipe and the filter to improve the precipitation effect of the well point. However, when the technical solution of this patent is actually used, if a power outage occurs during construction, the mud and sand in the water will fall back along the precipitation core tube and settle to the bottom of the permeable body, and accumulate along the upper end surface of the plastic plug. When it accumulates to a certain height, it will block the precipitation core tube, causing the precipitation core tube to fail; in addition, in this solution, air leakage and even falling off are prone to occur between the plastic plug and the permeable body. Utility Model Content
[0004] In view of the above problems, the utility model aims to solve the problem that the assembled precipitation wells in the prior art are easily blocked in the event of a power outage, and that air leakage or even falling off easily occurs between the plastic plug and the permeable body.
[0005] The technical solution adopted by the utility model is:
[0006] A deep well type downcomer pipe comprises a hollow tubular water-permeable body, a hollow downcomer core pipe, an upper fixing collar, a lower fixing collar, a water storage and air-blocking bucket and a hose;
[0007] The water-permeable body is a regular or irregular three-dimensional mesh structure, and its periphery is covered with filter cloth; an upper fixing ring is sleeved on the upper opening of the hollow tubular water-permeable body.
[0008] The lower end of the precipitation core tube is an oblique opening, and the angle α of the oblique opening is 10 degrees to 40 degrees; the precipitation core tube is inserted into the hollow tubular permeable body, the upper end of the precipitation core tube extends upward to communicate with the hose, and the lower end thereof extends into the water storage air-blocking bucket and is suspended in the air;
[0009] The water storage and air-blocking bucket is in the shape of a water cup; its lower end is closed, and its upper end is open, and a lower fixing ring is fixedly arranged at the edge of the upper end; the fixing ring, the lower end of the permeable body and the lower end of the precipitation core pipe are mutually nested and overlapped, and fixed together; the upper fixing ring and the lower fixing ring both play a fixing role on the permeable body;
[0010] The height of the upper edge of the oblique opening of the precipitation core tube does not exceed the height of the upper edge of the lower fixing ring.
[0011] Furthermore, the mutually nested and overlapping areas of the fixing collar, the lower end of the permeable body and the lower end of the precipitation core tube are fixed by driving pins.
[0012] Furthermore, the water storage and air blocking bucket has a height of 10-50 cm and a diameter of 1-50 cm.
[0013] Furthermore, the outside of the water permeable body is also wrapped with gauze or geotextile or nylon filter net.
[0014] Furthermore, the gauze or geotextile or nylon filter includes a fine filter layer and a coarse filter layer. The fine filter layer is close to the permeable body and is used to intercept finer particles; the coarse filter layer is located on the outer layer and is used to intercept larger particles.
[0015] Furthermore, the three-dimensional mesh structure of the water-permeable body is a plastic core formed by mutually entangled plastic filaments, with small gaps formed between the plastic filaments; the water-permeable body can also be replaced by a water-permeable corrugated pipe or a filter pipe or a soft water-permeable pipe or a perforated pipe.
[0016] Furthermore, a backwash pipe is provided at the inlet of the hose, and a plug which can close and open the backwash pipe is provided at the end of the backwash pipe.
[0017] Furthermore, a one-way air-blocking valve is also provided in the precipitation core tube, and the one-way air-blocking valve can only be opened in one direction upward.
[0018] The beneficial effects and features of the utility model are:
[0019] (1) The deep well type drainage pipe of the utility model is provided with a water storage and air-sealing bucket. When the water level drops to the pipe mouth in the event of a power outage, the stored water in the water storage and air-sealing bucket can play the role of sealing the pipe mouth of the drainage core pipe. In this way, even if the water in the soil body is drained, the drainage core pipe will not leak or return air.
[0020] (2) The deep well type rainwater pipe of the utility model is provided with a water storage and air-tight hopper. In the event of a power outage, the silt settles at the bottom of the water storage and air-tight hopper, effectively avoiding the problem of silt accumulation blocking the rainwater core pipe.
[0021] (3) The deep well type drainage pipe of the utility model forms a three-layer overlapping structure through the lower fixing ring arranged at the upper end of the water storage and air-blocking bucket, the lower end of the permeable body and the lower end of the drainage core pipe, and is fixed by pins. It is not easy to fall off or leak, thereby improving the reliability of the drainage operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the utility model;
[0023] Figure 2 for Figure 1 The enlarged schematic diagram of the structure at the bottom dotted line;
[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of a water storage and air-blocking bucket in a preferred embodiment of the utility model;
[0025] Figure 4 This is a schematic diagram of the explosion structure of the water-permeable body, the upper fixing ring, the lower fixing ring, and the water-storing and air-blocking bucket in a preferred embodiment of the utility model;
[0026] Figure 5 This is a schematic cross-sectional structure diagram of a water-reducing core tube of a preferred embodiment of the utility model;
[0027] Figure 6 A schematic diagram of the structure of a preferred embodiment of the utility model with a backwash pipe added;
[0028] The accompanying drawings in the figure respectively show: 1-permeable body, 2-precipitation core pipe, 3-upper fixed collar, 4-lower fixed collar, 5-water storage air-blocking bucket, 6-hose, 7-backwashing pipe, 71-plug, 8-pin, 9-one-way air-blocking valve; DETAILED DESCRIPTION
[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Embodiment 1:
[0031] Please refer to Figure 1 to Figure 3 This embodiment relates to a deep well type downcomer, comprising a hollow tubular water permeable body 1, a hollow downcomer core pipe 2, an upper fixing collar 3, a lower fixing collar 4, a water storage and air-blocking bucket 5 and a hose 6;
[0032] Please refer to Figure 4 The water-permeable body 1 is a regular or irregular three-dimensional mesh structure, and its periphery is covered with filter cloth; an upper fixing ring 3 is sleeved on the upper opening of the hollow tubular water-permeable body 1;
[0033] Please refer to Figure 5 The lower end of the precipitation core tube 2 is an oblique opening, the angle α of the oblique opening is 10 degrees to 40 degrees, the upper edge height of the oblique opening does not exceed the upper edge height of the lower fixed ring 4, and according to the current project reality, the height of the water storage air-blocking bucket 5 is preferably 10-50 cm, and the diameter is preferably 1-50 cm; the precipitation core tube 2 is inserted into the hollow tubular permeable body 1, the upper end of the precipitation core tube 2 extends upward and is connected to the hose 6, and the lower end thereof extends into the water storage air-blocking bucket 5 and is suspended in the air. The reason for being suspended in the air is that the lower part cannot reach the water storage The bottom of the air-locking bucket is because if there is a power outage during construction, the silt in the water will fall back along the precipitation core pipe 2 and settle to the bottom of the water-storing air-locking bucket, which will block the water inlet of the precipitation core pipe 2, so it needs to be suspended in the air, but the upper mouth of the lower fixed ring 4 cannot be exposed, otherwise it will leak. This design can also precipitate silt, thus achieving silt precipitation and air-locking at the same time; after the water level drops, the stored water in the water-storing air-locking bucket can play the role of sealing the pipe mouth of the precipitation core pipe 2, so that even if the water in the soil body is drained, there will be no leakage and air return;
[0034] The water-storing and air-sealing bucket 5 is in the shape of a water cup or a cone, with a closed lower end and an open upper end, and a lower fixed collar 4 is fixedly provided at the edge of the upper end (in some embodiments, the water-storing and air-sealing bucket 5 and the lower fixed collar 4 can also be designed as one body, forming an open water cup shape as a whole); the upper fixed collar 3 and the lower fixed collar 4 both play a role in fixing the permeable body 1; the lower fixed collar 4, the lower end of the permeable body 1 and the lower end of the precipitation core tube 2 are nested and overlapped with each other and fixed together; in some embodiments, the fixed collar 4, the lower end of the permeable body 1 and the lower end of the precipitation core tube 2 are fixed by driving pins 8 in the nested and overlapping areas. They are fixed together to prevent the permeable body and the water-storing and air-sealing bucket from leaking out and leaking air;
[0035] In some embodiments with special construction environments, a rubber ring may be added between the fixing collar 4 and the water-permeable body 1 to enhance air tightness.
[0036] Embodiment 2:
[0037] Please refer to Figure 6 As a preferred embodiment, it is different from embodiment 1 in that a backwash pipe 7 is also provided at the inlet of the hose 6, and a plug 71 is provided at the end of the backwash pipe 7 for sealing and opening the backwash pipe. In the event that the precipitation core pipe 2 is blocked, the plug 71 can be opened and high-pressure flushing water can be flushed in to clear the blockage.
[0038] As a preferred solution, the water permeable body is also wrapped with gauze or geotextile or nylon filter net. Specifically, the gauze or geotextile or nylon filter net includes a fine filter layer and a coarse filter layer, the fine filter layer is close to the water permeable body and is used to intercept finer particles; the coarse filter layer is located on the outer layer and is used to intercept larger particles.
[0039] As a preferred solution, the three-dimensional mesh structure of the permeable body 3 is a plastic core formed by plastic filaments entangled with each other, with small gaps formed between the plastic filaments; the permeable body 1 can also be replaced by a permeable corrugated pipe or filter pipe or soft permeable pipe or perforated pipe.
[0040] Embodiment 3:
[0041] As a preferred embodiment, different from Embodiment 1, a one-way air-locking valve 9 is also provided in the pipe at the upper end of the precipitation core pipe 2, and the one-way air-locking valve 9 can only be opened in one direction upward. In this way, if the precipitation core pipe 2 leaks, the one-way air-locking valve 9 is closed and sealed downward, which will not affect the precipitation pipes at other positions.
[0042] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction.
[0043] The above shows and describes the basic principle, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only to illustrate the structural relationship and principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A deep well downcomer, characterized in that : comprising a hollow tubular water-permeable body (1), a hollow precipitation core tube (2), an upper fixing ring (3), a lower fixing ring (4), a water storage and air-blocking bucket (5) and a hose (6); The water-permeable body (1) is a regular or irregular three-dimensional mesh structure, and its outer periphery is covered with a filter cloth; an upper fixing ring (3) is sleeved on the upper opening of the hollow tubular water-permeable body (1). The lower end of the precipitation core tube (2) is an oblique opening, and the angle α of the oblique opening is 10 degrees to 40 degrees; the precipitation core tube (2) is inserted into the hollow tubular permeable body (1), the upper end of the precipitation core tube (2) extends upward to communicate with the hose (6), and the lower end thereof extends into the water storage air-blocking bucket (5) and is in a suspended state; The water storage and air-blocking bucket (5) is in the shape of a water cup; its lower end is closed, its upper end is open, and a lower fixing ring (4) is fixedly arranged at the edge of the upper end; the lower fixing ring (4), the lower end of the water permeable body (1) and the lower end of the water-falling core tube (2) are mutually nested and overlapped, and fixed together; the upper fixing ring (3) and the lower fixing ring (4) both play a role in fixing the water permeable body (1); The height of the upper edge of the oblique opening of the water-falling core tube (2) does not exceed the height of the upper edge of the lower fixing ring (4).
2. The deep well downcomer according to claim 1, characterized in that The mutually nested and overlapping areas of the fixing collar (4), the lower end of the permeable body (1) and the lower end of the precipitation core tube (2) are fixed by driving pins (8).
3. The deep well downcomer according to claim 1, characterized in that The water storage and air blocking bucket (5) has a height of 10-50 cm and a diameter of 1-50 cm.
4. The deep well downcomer according to claim 1, characterized in that The outside of the permeable body is also wrapped with gauze, geotextile or nylon filter net.
5. The deep well downcomer according to claim 4, characterized in that The gauze or geotextile or nylon filter includes a fine filter layer and a coarse filter layer. The fine filter layer is close to the permeable body and is used to intercept finer particles; the coarse filter layer is located on the outer layer and is used to intercept larger particles.
6. The deep well downcomer according to claim 1, characterized in that The three-dimensional mesh structure of the water-permeable body (1) is a plastic core formed by mutually entangled plastic filaments, with small gaps formed between the plastic filaments; the water-permeable body (1) can also be replaced by a water-permeable corrugated pipe or a filter pipe or a soft water-permeable pipe or a perforated pipe.
7. The deep well downcomer according to claim 1, characterized in that A backwashing pipe (7) is also provided at the inlet of the hose (6), and a plug (71) capable of sealing and opening the backwashing pipe is provided at the end of the backwashing pipe (7).
8. The deep well downcomer according to any one of claims 1 to 7, characterized in that A one-way air-blocking valve (9) is also provided in the precipitation core tube (2), and the one-way air-blocking valve (9) can only be opened in one direction, upward.